Both in Chile and in other countries, managing municipal solid waste (MSW) is a difficult problem, due to the various variables explaining it. Several background data suggest that the possibilities of solving the problem are associated to the education and…

The Environmental Management System (EGS), was constituted at the University of Antioquia in order to improve the environmental conditions, health and well being levels of the community; promoting the efficient use of resources, involving cultural changes in consume patterns, knowledge…

The improvement or design of a solid waste management system in any locality should be based on the knowledge of the solid waste characteristics, such as generation per capita, density and composition; depending on the type of treatment that is…

To solve the several problems caused from the deficient solid waste management in many of our municipalities, must be considered 4 substantial items: planning, legislation, the most citizen participation and the financing aspect. Failing in any of those subjects is…

The objective of this paper is the development of a mathematical model of anaerobic digestion that simulates the principal control variables in the process, and helps the planning and operational phases in normal and particular situations of operation in the…

The research problem dealt with in the first part of this text concerns the existence of a Mayan theory of knowledge based on its own historical evolution through a mind perspective that involves an acceptance of intercultural difference. The text…

The Libro de medicinas, muy seguro.... (1751) is an unpublished source of great importance for our knowledge of traditional Yucatec medicine, both because of its early date as well as the fact that it reflects a synthesis between purely indigenous…

The research problem dealt with in the first part of this text concerns the existence of a Mayan theory of knowledge based on its own historical evolution through a mind perspective that involves an acceptance of intercultural difference. The text…

The Libro de medicinas, muy seguro.... (1751) is an unpublished source of great importance for our knowledge of traditional Yucatec medicine, both because of its early date as well as the fact that it reflects a synthesis between purely indigenous…

The research problem dealt with in the first part of this text concerns the existence of a Mayan theory of knowledge based on its own historical evolution through a mind perspective that involves an acceptance of intercultural difference. The text…